Android Retrofit 笔记之一使用拦截器设置缓存

一，定义拦截器

public class Getretrofit {    private static OkHttpClient httpclient;    private static Retrofit retrofit;    public static Retrofit initretrofit(String baseurl) {        //缓存路径和大小        File httpcache = new File(Environment.getExternalStorageDirectory(), "httpcache");        int cachesize = 10 * 1024 * 1024;        Cache cache = new Cache(httpcache, cachesize);        //日志拦截器        HttpLoggingInterceptor logging = new HttpLoggingInterceptor();        logging.setLevel(HttpLoggingInterceptor.Level.BODY);        //拦截器        Interceptor rewrite_cache_control_interceptor = new Interceptor() {            @Override            public Response intercept(Chain chain) throws IOException {                Request request = chain.request();                LogUtils.d(request.url());                LogUtils.d(request.method());                Response response = chain.proceed(request);                LogUtils.d(response.message());                if (NetworkUtil.isNetworkConnected(UIUtils.getContext())) {                    int maxage = 3;//缓存失效时间，单位为秒                    return response.newBuilder()                            .removeHeader("pragma")//清除头信息，因为服务器如果不支持，会返回一些干扰信息，不清除下面无法生效                            .header("cache-control", "public ,max-age=" + maxage)                            .build();                }                return response;            }        };        httpclient = new OkHttpClient.Builder()                .connectTimeout(8, TimeUnit.SECONDS)//设置连接超时                .readTimeout(8, TimeUnit.SECONDS)//读取超时                .writeTimeout(8, TimeUnit.SECONDS)//写入超时                .addInterceptor(logging)//添加日志拦截器                .cache(cache)//把缓存添加进来                .addNetworkInterceptor(rewrite_cache_control_interceptor)//添加缓存拦截器                .build();        retrofit = new Retrofit.Builder()                .baseUrl(baseurl)                .client(httpclient)                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())// RxJava 适配器                .addConverterFactory(GsonConverterFactory.create())                .build();        return retrofit;    }}

二，定义网络接口

public interface APIService {    @GET("{category}/{count}/{page}")    Observable getAndroidInfos(@Path("category") String category, @Path("count") String count,                                                       @Path("page") String page);    @GET("weather_mini")    Observable getNewsInfos(@Query("citykey") String city);}

三，定义返回的bean

public class InfoBean {    /**     * data : {"yesterday":{"date":"7日星期日","high":"高温 2℃","fx":"西风","low":"低温 -4℃","fl":"","type":"阴"},"city":"北京","aqi":"76","forecast":[{"date":"8日星期一","high":"高温 2℃","fengli":"","low":"低温 -6℃","fengxiang":"西北风","type":"晴"},{"date":"9日星期二","high":"高温 1℃","fengli":"","low":"低温 -7℃","fengxiang":"西北风","type":"晴"},{"date":"10日星期三","high":"高温 -1℃","fengli":"","low":"低温 -10℃","fengxiang":"西北风","type":"晴"},{"date":"11日星期四","high":"高温 -2℃","fengli":"","low":"低温 -10℃","fengxiang":"西南风","type":"晴"},{"date":"12日星期五","high":"高温 1℃","fengli":"","low":"低温 -9℃","fengxiang":"西南风","type":"晴"}],"ganmao":"各项气象条件适宜，无明显降温过程，发生感冒机率较低。","wendu":"-1"}     * status : 1000     * desc : OK     */    private DataBean data;    private int status;    private String desc;    public DataBean getData() {        return data;    }    public void setData(DataBean data) {        this.data = data;    }    public int getStatus() {        return status;    }    public void setStatus(int status) {        this.status = status;    }    public String getDesc() {        return desc;    }    public void setDesc(String desc) {        this.desc = desc;    }    public static class DataBean {        /**         * yesterday : {"date":"7日星期日","high":"高温 2℃","fx":"西风","low":"低温 -4℃","fl":"","type":"阴"}         * city : 北京         * aqi : 76         * forecast : [{"date":"8日星期一","high":"高温 2℃","fengli":"","low":"低温 -6℃","fengxiang":"西北风","type":"晴"},{"date":"9日星期二","high":"高温 1℃","fengli":"","low":"低温 -7℃","fengxiang":"西北风","type":"晴"},{"date":"10日星期三","high":"高温 -1℃","fengli":"","low":"低温 -10℃","fengxiang":"西北风","type":"晴"},{"date":"11日星期四","high":"高温 -2℃","fengli":"","low":"低温 -10℃","fengxiang":"西南风","type":"晴"},{"date":"12日星期五","high":"高温 1℃","fengli":"","low":"低温 -9℃","fengxiang":"西南风","type":"晴"}]         * ganmao : 各项气象条件适宜，无明显降温过程，发生感冒机率较低。         * wendu : -1         */        private YesterdayBean yesterday;        private String city;        private String aqi;        private String ganmao;        private String wendu;        private List forecast;        public YesterdayBean getYesterday() {            return yesterday;        }        public void setYesterday(YesterdayBean yesterday) {            this.yesterday = yesterday;        }        public String getCity() {            return city;        }        public void setCity(String city) {            this.city = city;        }        public String getAqi() {            return aqi;        }        public void setAqi(String aqi) {            this.aqi = aqi;        }        public String getGanmao() {            return ganmao;        }        public void setGanmao(String ganmao) {            this.ganmao = ganmao;        }        public String getWendu() {            return wendu;        }        public void setWendu(String wendu) {            this.wendu = wendu;        }        public List getForecast() {            return forecast;        }        public void setForecast(List forecast) {            this.forecast = forecast;        }        public static class YesterdayBean {            /**             * date : 7日星期日             * high : 高温 2℃             * fx : 西风             * low : 低温 -4℃             * fl :              * type : 阴             */            private String date;            private String high;            private String fx;            private String low;            private String fl;            private String type;            public String getDate() {                return date;            }            public void setDate(String date) {                this.date = date;            }            public String getHigh() {                return high;            }            public void setHigh(String high) {                this.high = high;            }            public String getFx() {                return fx;            }            public void setFx(String fx) {                this.fx = fx;            }            public String getLow() {                return low;            }            public void setLow(String low) {                this.low = low;            }            public String getFl() {                return fl;            }            public void setFl(String fl) {                this.fl = fl;            }            public String getType() {                return type;            }            public void setType(String type) {                this.type = type;            }        }        public static class ForecastBean {            /**             * date : 8日星期一             * high : 高温 2℃             * fengli :              * low : 低温 -6℃             * fengxiang : 西北风             * type : 晴             */            private String date;            private String high;            private String fengli;            private String low;            private String fengxiang;            private String type;            public String getDate() {                return date;            }            public void setDate(String date) {                this.date = date;            }            public String getHigh() {                return high;            }            public void setHigh(String high) {                this.high = high;            }            public String getFengli() {                return fengli;            }            public void setFengli(String fengli) {                this.fengli = fengli;            }            public String getLow() {                return low;            }            public void setLow(String low) {                this.low = low;            }            public String getFengxiang() {                return fengxiang;            }            public void setFengxiang(String fengxiang) {                this.fengxiang = fengxiang;            }            public String getType() {                return type;            }            public void setType(String type) {                this.type = type;            }        }    }}

四，使用

 Retrofit retrofit = Getretrofit.initretrofit(baseurl);        APIService service = retrofit.create(APIService.class);        service.getNewsInfos("101010100")                .subscribeOn(Schedulers.io())                .observeOn(AndroidSchedulers.mainThread())                .subscribe(new Observer() {                    @Override                    public void onSubscribe(Disposable d) {                        d.dispose();                    }                    @Override                    public void onNext(InfoBean infoBean) {                        //LogUtils.object(infoBean);                        LogUtils.d(infoBean);                    }                    @Override                    public void onError(Throwable e) {                        LogUtils.d(e.getMessage());                    }                    @Override                    public void onComplete() {                    }                });

更多相关文章

随机推荐